Sampling device for road engineering detection

The utility model provides a sampling device for road engineering detection. The sampling device comprises a U-shaped base rod; the ground drilling mechanism comprises a base disc connected with the inner side of the U-shaped base rod, a driving motor mounted on the upper surface of the base disc and a spiral drill rod connected with the driving motor; the sampling head is mounted at the bottom end of the auger stem; the two stabilizing mechanisms are arranged on the two sides of the U-shaped base rod, and each stabilizing mechanism comprises a guide rod connected with the side edge of the U-shaped base rod and an insertion rod inserted into the bottom end of the guide rod; the protective sleeve is arranged on the outer sides of the two inserting rods in a sleeving mode, an L-shaped supporting plate is further fixedly connected to the rear side of the U-shaped base rod, a T-shaped sliding groove is formed in the rear side face of the L-shaped supporting plate, a T-shaped sliding block is arranged in the T-sha